<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>button标签</title>
</head>
<body>
<form action="">

    默认类型是submit类型
    <br>
    <button type="submit">提交</button>
    <button type="reset">清楚</button>
    <button type="button">普通按钮</button>


</form>
</body>
</html>